정지 저출력 운전시 소형 냉각재상실사고 민감도 분석

다국어 초록 (Multilingual Abstract)

Various small-break loss-of-coolant accident (LOCA) analyses, including the pressurizer (PZR) power-operated relief valves (PORVs) stuck-open accidents and the recovery actions in a pressurized water reactor (PWR) during shutdown operations, were performed in this paper. This research aims to verify the effectiveness of the emergency operating procedure (EOP) and of the emergency core-cooling system (ECCS) on reactor safety during shutdown operations. The break sizes were from 0.0254 m to 0.3 m in diameter, which is equivalent to the diameter of the branch pipe of the plant's reactor coolant system. The analysis results indicate that a high-pressure safety injection (HPSI) should be administered manually within 15 minutes to meet the ECCS design criteria in a LOCA during shutdown operations.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 최적해석을 위한 전산 코드 모델링
• 3. 정상상태 분석
• 4. 정지운전중 냉각재상실사고 분석
• 5. 결론
• 참고문헌